From the Daily Mail:

Tens of thousands are dead, hundreds more of the dying lie writhing on the battlefield, powerless to protect their children.

These horrifying and yet fascinating scenes are the highlights of a three-hour battle between just 30 giant Japanese hornets and 30,000 European honeybees.

Vespa velutina - the hornet's Latin name - is believed to have hit Europe in 2004 after hitching a ride to France on some pot plants transported from China.

In Asia, honeybees have learned to encircle an intruder and, by flapping their wings, cause it to overheat and die. But European bees have not had enough time to evolve an effective tactic.

For more, see: Massacre in the hive: Amazing footage of 30 giant Japanese hornets slaughtering 30,000 tiny honeybees to eat their young